Automobile-lock



v er@ i we. S gibs specification of Letters Fatent.

Patented Nov., 2?@ te Siti..

ipiieeton e. March 8, i919. Seria No. 281,361.

To allee/mm it may concern.'

Be it known that l', CHAnLns G. Tnosnn, a citizen of the United States,residing at Pontiaci e'onnty of Gilliland, State of Michirfan., haveinvented a certain new end useui improvement in Automobile-Looks, anddeclare the following to be e toll, clear, and. exact description ot theseme, sneh as Wiii enaioie others skilled. in the art to which itpertains to maire and use the saine, reference hemp; had to theaccompanying drawings, whih form a part of this specification.

My invention relates 'to automobile looks and an object oit in vimprovements is to provide an improved. ineens `for locking the ohnngespeed gearing in its neutral position. l secure this object in thedevice iiinstrated in the accompanying drawings in Whicii, i

Figure 'i is a pian View partij; broken away ot' a change speed gearingfor en antomobile.

Fig. Z is s section on the iine H--I Fin'. i..

Fig. is a detail seetionai eievation of a part et rig. 2 to an enlargedseele, the

parte being' in looked position.

Fig, it isa view similar to Fig. 3 but more completely in section, theparte being; in unlocked position.

Fig'. 5 is a view similar to Fig. 4i showing e modified eolist'rnetion.

Fig. 6 is en. inverted pian View oit the locking mun.

a is the casing for the change speed. gearing. are the shitting; rodsused in the selective type of change speed gearing. The rods areprovided with notches b2 Y# b3 in their surfaces which serve inconjunction with the detente, or paWls, hereinetter de scribed, toindicate the diierent positions ot the gearing. a2 is n verticalextension of the casing t adapted to receive a pinlock mechanism a?. ais e transverse aperture in the casing a of about the same diemeter esthe rods 7) b and havingits axis in the seme plane. o o are two tubularpieces having their remote onde closed and formed into the shape of aeene, this shape adapting them to act as dogs, or detente, to engage inthe notches 712 t 7)*2 `Within the tubular parte o c und having an endbearing against each ot'said parte is the compression spring d. Thisspring :iets to press the parts o o yieldlngly into the notches b2 Z13of the rods b t,

e is a rod 'placed Within the heiieai spring', o? and approximatelycoaxial with the part c c, this rod being of such e lengti that it wiipermit of the movements of one ot the parts o in the aperture at, todraw it Jfrom n notch b2 or o3 in one of the rods Z5 hut 'will preventthe Withdrawal of both of seid parte o c from their respective notches.

In Fig. 5 there is shown a tubular rod e o es en alternative form of therod e. The tubular rode a itting Within the perte o e and over thespring [Z and. perfornnn saine function end. of the seine iength i' rode.

if is e cylindrical part adapted to .Y in the extension o2 `,trono thecasing a, the part f is provided with a. eem-iike Sortenm sion f2 at itslower end and is engaged, hy the pin-look a 'so :isY to rotate with theiatter. :The cem f2 extendsbetween the in-- ner ends of the parts 0 o.When it is turned in a position transverse to theexis of parts one orthey other of said parte may move out of engagement with the notch in anotches and the shiftingro sind ythus said rods are locked and thegearing cannot be used.

The notches 25S correspond to the nentrai position of the change speedgearing and when they are opposite each other, es iiiug" treted in thedrawing, and the oem f tanrnedl to its locked position, then the gearingis locked in its neutra position and the 'autofmobile cennot be used.

What I claim is: l. In e 'change speed' gearing, a pair of gear shiftingrods having slots in their ad jacent sides, a series ofpartsffeonsisting of( end parte and anintermedinte part,.said and Btishifting; rod b. When the part f is turned I so that the cem f2 extendsparallel to the axis of the parts c o the cam interposes itself' in thepath ot travel of solid parte and they cannot move ont ofengagementvv/With' the' titi parts engaging in said slots, and ey eemadapted to interpose itself between the end parte of said series to-llold the some in engegement in said slots in one positionl of seidcam' or when moved te another position no permit the movement of seidend partej seid series of parte being adapted to look one of saidshifting rods Awhen the other of seid rods is moved. Y

3. In e change speed'gearing, epa-ir of gear shifting rods having Slotsin their ad meent sides, a pair of parte located between said gea-rshifting rods and adapted to engage in seid slots, e lliird partintermediate the first mentioned parte for limiting the movement. of thelatter toward each 'other and e cam rod'extending normal to e ple-nethrough said shifting gear rods and adapted te rotate about its axis tonterpose a cam between said vpair of parte or .to release said parteA f3 4. In e change speed gearing, a pair of gear shifting rods havingslots in their ad- ;geceni; sides, a pair of parts located between saidgear shifting rods. and adapted 'to engege in said slots, and a thirdpart intermediatethe first mentioned parte for limiting elle movement`of the letter toward eecii other, und e spring between seid pair of"parte acting to force said parts into engagement with said slots.

5. lin a change Speed gearinvf, a pair of gee-r shifting rodslmvingslots in their adjacent sides, a pair of perteloceted beween Seidgeerslnfting rods and adapted to enJ gege in seid siete, end e, al irdpart interrne diete the lirst menioned parts for limiting the inoveinem;of ille later toward eeoh other, end n springn between said pair ofparte acting to force seid parte inio.engagen ment with seid slots, seidintermediate part being concentric with said spring.

6. In a, change .speed gearing, e, pair of gem' shiftingl rode .havingele-ie in their ed jacent sides a pair of parte located between seidgear shifting rods and adapted to en gage in seid slots5 and e iohirdperi intermediate the iref; mentioned parte for limiting the noovernenrI of the letter toward eecli other, and e, spring be'ween said pair ofparts acting to force ,said parte into eng-:ifdef ment Wili said siete,seid .spring and inreimediate part being in supper-icing reletion toeach other. n

7. Inechzrnge speed gearing., e pair of gear shifting rods having Slotsin their ed jacent sides, :L series o' parte eensieving of end parte anden inerniedime pari adepf/ed to linoiil the movement of alie end pertetoward each.' other, yseid end parte, being adapted to engage in saiderots and e cam adapted to interpose e locking meeneinline,n dietelybetween the end parte of seid series to hold the Seine in engagement insaid slots in one position of Said cern or when moved to anotherposition to perniiithe movenien", of said end parie.

in testimony whereof, this Speeii cation.

G. TRSEN,

